#include<bits/stdc++.h>
using namespace std;
const int N=100005;
int n;
int a[N];
int main()
{
    freopen("duel.in", "r", stdin);
    freopen("duel.out", "w", stdout);
    cin.tie(0);
    cin>>n;
    for (int i=1; i<=n; ++i)
    {
        int t;
        cin>>t;
        ++a[t];
    }
    int ans=-1;
    for (int i=1; i<=N-1; ++i)
    {
        if (a[i]>ans) ans=a[i];
    }
    cout<<ans<<'\n';
    return 0;

}
